Safety-gate for metal-mixers.



M. M. SUPPES'.

SAELTY GATE TOR METAL MIXBRS.

APPLICATION FILED um. 28, 1911.

1,006,700. Patented 0013.24, 1911.

.1 WITNESSES INVENTOR M. M. SUPPES.

SAFETY GATE FOR METAL MIXERS.

APPLICATION 11.21) was. 1911.

1,006,700. Patented 0@t.24,1911.

2 SHEETS-45111311 2 I L I wnmzsses INVENTOR 'vation of the a paratu max u, curries; or 'nmrara, onro.

SAFETY-GATE roa mama-mums.

Specification of Letters Patent.

Patented Oct. 24, 1911.

Application filed August 28, 1811. Serial No. 846,522.

To all whom it me concern:

Be it known t at I, Max M. Sure-as, a :itizen of the United States, residin at Elyria in the county of Lorain and v tatc of Ohio, have invented a new and useful daily-Gate for Metal-Mixers, of which the following is a specification.

My invention relates. to a safety device for vessels or containers employed in handling and 'storin molten metal, and more paricularl re ates to a safety ate for preventing spi ling of molten meta from such contumors or vessels.

One object of my invention is to provide a safety ate-or shutter for metal mixers and simi ar vessels whereby in cases of emergency spilling of metal from the ouring spout such vessels is revente and overcome and possible loss of ife or damage to. surrounding property thereb avoided and rendered ractically impossib e.

Another object of the invention is to rovide novel means for operating or hand ing the safety gate by which the safety gate is manipulated and lowered into its operative position and is raised into its operative position in which it is ordili" ily maintained.

Referring to the'accompa'nying drawings formin part of this specification, Figure 1 is a si e elevation of a portion of a metal mixer or receiver showing my improved safety device as applied for use on the pouring spout thereo own in Fig. 1. Fig. 8 is a-detai sectional side elevation of the pouring spout showing the safety gate in its lowered ,or operative positio t erein. Fig. 4 is a side elevation partly in section, Sl'OWiIl one form of tripping mechanism a a t is aid end elevation of the tripping mec anism shown in Fig. 4.

In the drawings, 2 designates a rotary vessel employed as a metal mixer or recelver for molten metal. The vessel is rotatably mounted upon suitable supports 3 and 1s provided with a pouring spout 4 through which the metal is emptied or oured from the mixer. A receiving spout is located on the oppositeside of the vessel through which the metal is introduced into the mixer, and the vessel 2 and its spouts are provided wlth a refractory linin constructed in the usual manner. Mounts on the sides of the pour- 4 of the vessel so as to extend Fig; 2 is a front eles s "with a for use on the safety gate. Fi 5 as to lift the vertically thereon are slides or ways 6 in which a slidin gate or shutter 7 is mounted to be vertical y movable therein. A cross bar or arm 8, arranged to extend across and between the upper ends of the Ways 6 is rovided to form a sup ort for the sheave w eel 9 which is rotata y secured by a .pin or shaft 10 on the bracket bearings 11 mounted on the cross arm 8.

A cable or other flexible connection 12 is secured by one end to the upper edge of the gate or shutter 7 and passes around the sheave wheel 9, the other end of this cable being provided with a link 13 by which the gate is held in its raised or inoperative osition. The link is arranged to connect with the finger 14 of the tripping lever 15 which is pivotally mounted on the support. 16

secured to one of the sides of the pouring spout 4. The upper end of the tripping lever 15 is c nnected to one end of a wire rope or otherfiexible connection 17.

As in the apparatus shown, (which has a maximum capacity of 1300 tons of molten metal), the gate 7 is comparatively large anti too heavy to be readlly manipulated manually, a lifting motor 18 such as the small electric motor shown, is provided to lift the gate from its operative or spout closing position into its'inoperativ'e or normal position. This motor 18.is geared or otherwise operatively connected to a windin drum 19 having one end of a-"c'able or 01; or 'flexible connection 20 secured thereto. The op osite end of the cable 20 is provided ook 21 which is ada ed, when the cable 20 is unwound from the drum 19,. to engage with the link 22, which is provided ad acent to one end on the flexible connection 12 by which the to or shutter 7 is lifted and held in its raised position.

The 0 eration of the apparatus is as follows:- he hook 21 on t e rope 20 is connected with the link 22 in the gate supporting cable 12 and the motor 18 is then act-uated to wind the rope 20 on the drum. 1%! so ate 7 into the lposition shown in Figs. 1 an 2. The latch ever 15 is'then moved manually so that the finger 14 on this lever engages with the link- 13-0n one enu of the cable 12 so as to secure and hold the A gate 7 in its lifted position. The vessel or mixer is then rotated or tilted as often as desired in successivel removing portions of the metal containe therein to otherreceivers or ladles.- Sticking or other accldent to the mixer turning mechanism preventing backward tipping of the mixer re suits in great liululity of spilling large qmmtities ot' the molten metal in the mixer, and molten [metal], when spilled, is liable to cause injury and loss of life, as well as greatly damagesurrotinding property. In such case when control of the mixer is lost temporarily or an accident or breakdown of the tilting or rocking mechanism occurs, an operative will grasp the wire ro e 17 connected to the tnper end ofthe atch lever and by a pull cable 12. The weight of the gate will then cause it to ui-ckly slide downwar ly in the we s or sli es 6 and shut oil the flow of me al from the mixer 2 throu h the spout 4. The mixer is rocked or tiltedackwardly as soon as may be so that no more metal will flow therefrom. The motor 18 isthen again employed to lift the ate or shutter 7 and the link 13 on the on of the cable 12 connected to the gate. 7 isagain engaged by the finger 14 on tlietripping lever 15 so as to maintain the gate 7 in its raised or lifted I position in readiness for use until such time as necessity caused by accident or breakage requires it to be lowered or allowed to drop. In such case the above described operations are repeated.

The advantages of my invention will be apparent to those skilled in the art. By the application and use of the safety gate on the pouring spout of rocking or tilt ng vessels con'tainin large uantities of ten metal the liability of serious injuries 01 oss of life and great damage to surrounding property in case of accident is prevented and over- COlne.

The apparatus is simple and is easily ke t in repair.

K Iodifications in the construction and arrangement of the partsmay be made without departing from my invention as defined in the claims. Instead of; using a rotary motor as shown for raising the safety ate,

- a fluid pressure cylinder or. other 1i ing mechanism may be employed. When the necessary' size of the gate is small enough, the lifting motor maiy be dispensed with. The construction of t e latch. and tripping will detach and release the thereon of a sliding safety gate mova le into and out of said spout, means for detaehably holding the gate out of said spout and means for manually operating said detachable holding means to release the gate.

3. The combination with a vessel for han dling molten metal having a pouring spout,

.of a sliding safety gate movable into and out of said spout, tripping mechanism to hold said gate out of said spout and means for actuating the tripping mechanism to release and permit downward movement of the gate into said spout.

4. ,The combination with a vessel for handling molten metal having a pouring spout, of a sliding safety gate movable into and out of said spout, trip ing mechanism to hold said gitte out of said spout, means for actuating t e trippin mechanism to release and permit downwar movement of the gate into said spout and power means for lifting the gate but of said spout into engagement with said-tripping mechanism.

5. The combination with a vessel for handling molten metal having a pouring s out, a sliding safety gate movable into an out of the spout, and ways or slides for the gate, of means for holding the gate in its raised inoperative position and trippin me'chanism arranged when actuatedto re ease and permit descent of the ate into the pourin s at of the vessel to s at on flow of meta t erefrom. I f

In testimony whereof, I have hereunto set my hand. I MAX M. SUPPES. Witnesses: i

F, W. WATERMAN,

. D..W. Lawunnon. 

